#DOCKER FOR WINDOWS KUBERNETES CLUSTER INSTALL#

configuration files on your host into a container. Here you can define, that volumes are used or even mount external data, e.g. Basically here you define, what container is running and what additional information you feed into it.Ĭontainers are by design ephemeral, that means data created by the container are lost when the container receives no information on where to save the data outside of itself. In them you define your container images, provide information which storage or network they use, how they depend on other services, how health checks are handled, which network ports they will listen on and so much more. Services might be the most important aspects of a docker-compose/stack file. An overview of the versions can be found here.

If you are using docker-stack you will find the version field again for the same purpose. Depending on the version you can use features provided by docker-compose. This is the version of the compatible docker-compose interpreter. We can find the following entries within a typical docker-compose YAML file: Now that our service is running, we should investigate the docker-compose YAML a bit further. After running the command I can access the service by browsing to my test box on the preconfigured port, don’t forget to configure your firewall when trying at home. I will run the podman variant on my node called okd4-services, a CentOS Stream 8 box. Just a real quick reminder: docker-compose let’s you run multiple containers at once, while you provide container images, local mount points and other configurations needed for your workload. My config examples are neither best practice nor production environment recommendations! So please see this article just as a fun little kick-starter to your own journey. Therefore I will refrain from too complicated orchestration examples, health checks, vast deployments, ingress routing and others. Please bear in mind, I want to keep the examples short, simple and understandable. Which microservice can we use to show off the Docker to Kubernetes story? Well, how about WordPress? Why WordPress? It is a very simple microservice (mysql-database, php-webserver), which delivers a good WYSIWYG experience and shows off interconnectivity of microservices in a straightforward way. This is what we want to have a look into in this article. But when your container runs and your docker-compose is up and running, how do you continue from there? How do you translate Docker, docker-compose, docker-stacks into a Kubernetes Deployment? Isn’t Kubernetes too overwhelming to “just use”? As said, Docker is great to get started to “play with containers and microservices”. With the latest Kubernetes announcement to drop Docker Runtime support (NOT Docker Container Support!!!) it is even more clear now, that Docker’s glory days as Runtime of choice are ticking toward an end.īut let’s keep looking on the bright side of Docker. The last attempt was Docker Enterprise Edition which is now part of MIRANTIS. Sadly, Docker never really embraced Kubernetes as the new (de-facto) Container Orchestration standard and tried everything to be its own thing.

#DOCKER FOR WINDOWS KUBERNETES CLUSTER INSTALL#

Docker was considered a great choice to run your apps in production as well, with the easy to learn, install and adapt Docker Swarm Orchestration. It did not matter if you wanted to just play around with containers or if you wanted to build up new microservices, Docker was and still is a great choice to get yourself started. It established itself very fast as the de-facto standard to get going with your container journey.

Docker for windows kubernetes cluster